in this research we have studied the effect of some transition-metals (cu, ag and au) substitutions on two-electron reduction potential of flavins by application of dft method. all geometries have been optimized at blyp level of theory and “6-31+g** + lanl2dz” mixed basis set. the frequency job at the same method and basis sets has been performed to obtain gibbs free energy of compounds. it h...

One of the important distinctions of the Islamic Social Security model with conventional patterns is the very constructive and essential role of social inequality and voluntary participation. Revitalizing this sector in line with the needs of the day and advances in information technology requires research and cultural work by influential social authorities and institutions. In the Islamic view...

Introduction: Effective healthcare team among healthcare providers is important to improve the quality of services and to provide safe and effective care. The purpose of this study was to evaluate the of healthcare team work and its related factors in operating room Methods and Materials: The current study is a descriptive-analytic study and the study population consisted of 217 healthcare pro...

Introduction:Teams as the fundamental units of organizations and lever keys are considered for improving the function of organization. For promoting the productivity and acquiring the satisfactory staffs and clients, organizations use working teams. Some organizations are highly dependent teams. Hospital is also one of these organizations, in which establishing cooperation between the members o...

Introduction: Assessment the effective factors in non- observance with health guidelines of the National Corona Virus Headquarters helps to make more effective decisions and control of the epidemic. The aim of this study was to determine the effective factors in noncompliance with health guidelines related to COVID-19 in 2020. Methods: This is a cross-sectional descriptive study. The research ...

for a given riemannian manifold (m,g),it is an interesting question to study the existence of a conformal diffemorphism (also called as a conformal transformation) f : m ! m such that the metric g? = fg has one of the following properties: (i)(m; g?) has constant scalar curvature. (ii)(m; g?) is an einstein manifold.